When to use a Python dictionary. Using Python dictionaries makes the most sense under the following conditions: You want to store objects and data using names, not just positions or index numbers.

Python dataclasses can make your Python classes less verbose and more powerful at the same time. Here's an introduction to using dataclasses in your Python programs.

q is a Python dictionary. It holds key-value pairs. If you look up the value of “action”, you get “query” and so on. For example, you’d perform such a lookup using q[“action”].